Mighty Networks - Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.

HivePress - HivePress is a free WordPress plugin that allows you to build any type of directory and listing websites. It's incredibly easy to use and highly customizable.

Bigtent - BigTent is a web-based organization and communication portal for groups.

SocialOomph - Boost your productivity with advanced post scheduling tools. We help individuals and teams.

Nabble - Nabble is a forum software that are embeddable and fully customizable with scripting language.

phpListings.com - Start your own business directory website with customizable widget-based templates and effective listing monetization tools.